Java Program to Implement Cartesian Tree

This is a Java Program to implement Cartesian Tree. A Cartesian tree is a binary tree derived from a sequence of numbers. It can be uniquely defined from the properties that it is heap-ordered and that a symmetric (in-order) traversal of the tree returns the original sequence. Introduced by Vuillemin (1980) in the context of geometric range searching data structures, Cartesian trees have also been used in the definition of the treap and randomized binary search tree data structures for binary search problems. The Cartesian tree for a sequence may be constructed in linear time using a stack-based algorithm for finding all nearest smaller values in a sequence.

Here is the source code of the Java program to implement Cartesian Tree. The Java program is successfully compiled and run on a Windows system. The program output is also shown below.